Telefunken Usa U47 Large Diaphragm Tube Condenser Microphone
The TELEFUNKEN U47 microphone, which is a legendary and iconic microphone known for its exceptional sound quality and historical significance in the world of recording and music production. The U47 has been a staple in recording studios for decades and is often considered one of the finest microphones ever produced. Here’s a breakdown of the key features mentioned:
Sonic Characteristic:
The U47 is praised for its authoritative mid-range and extended low-end response. It is known for delivering a rich and vibrant tone that is suitable for various applications, ranging from recording symphonies to modern music genres. Its sound quality is compared to the experience of appreciating a fine vintage wine.
Circuit Design:
The original U47, developed in 1946, was groundbreaking for introducing selectable polar patterns (cardioid and omnidirectional) and featuring the M7 capsule, developed by Georg Neumann in 1928. The microphone utilized military surplus VF14 tubes for its amplifier and BV8 output transformers, resulting in a sonic quality that was superior to the ribbon microphones of the time.
VF14 Tubes:
The amplifier of the U47 was built using VF14 tubes, which were originally designed for field and aircraft radios. These tubes contributed significantly to the microphone’s unique and exceptional sound quality. In the modern recreation, a newly developed VF14k vacuum tube is used as a replacement for the rare VF14M tubes found in the original U47.
Construction:
The new TELEFUNKEN U47 closely resembles its classic design. The microphone features a large chrome head grille that houses a newly manufactured M7 capsule. The body has a matte nickel finish and contains a new BV8 output transformer and VF14k vacuum tube. The iconic “TELEFUNKEN” diamond logo is proudly displayed on the front of the body tube.
Accessories:
Each U47 microphone comes with a comprehensive set of accessories, including an M 940H power supply, an M840TH 25’ Sommer tube microphone cable, an M740 shock mount, an FC40 locking flight case, and a WB40 wooden microphone box.
The TELEFUNKEN U47’s historical significance, exceptional sound quality, and attention to detail in its recreation make it a sought-after microphone for professional recording studios and artists seeking a classic and timeless sound.
Additional information
Type
Pressure Gradient Condenser
Capsule
M7 – 25.4 mm Center Terminated Diaphragm
Tube Type
TELEFUNKEN Elektroakustik VF14K
Transforme
Custom Wound TELEFUNKEN BV8
Polar Pattern
Cardioid, Omnidirectiona
Frequency Range
20 Hz – 20 kHz, ± 3 dB
Sensitivity
24.5 mV/Pa ±1 dB
THD at 1kHZ at 1Pa (Amplifier)
<0.3%
Output Impedance
400 Ω
Maximum SPL (for 1% THD)
127 dB
S/N Ratio
85 dBA
Self Noise (Amplifier)
9dBA
Dimensions
240 mm L x 60 mm Dia
Weight
620 g
Current Draw from Mains
85 mA
Power Supply
M 940H – Vintage Compatible 6 Pin Female Tuchel Input, 3 Pin Male XLR Output
Cable
M 840H – 25 ft Sommer SC-Square 4-Core Cable, Vintage Compatible 6 Pin Male & Female Tuchel
Wooden Box
WB40
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